« previous next »

Author Question: The element iron (Fe) occurs naturally as four isotopes. Each of these isotopes has A) 26 ... (Read 172 times)

yoooooman

  • Hero Member
  • *****
  • Posts: 557
on: Aug 27, 2018
The element iron (Fe) occurs naturally as four isotopes. Each of these isotopes has
 
  A) 26 protons.
  B) 26 electrons.
  C) a different number of neutrons.
  D) all of the above

Question 2

An iron oxide is 77.7 in iron. Its empirical formula is ________.
 
  A) FeO
  B) Fe2O
  C) Fe2O3
  D) Fe3O4


14vl19

  • Sr. Member
  • ****
  • Posts: 310
Reply #1 on: Aug 27, 2018
Answer to Question 1

D

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

yoooooman

  • Hero Member
  • *****
  • Posts: 557
Reply #2 on: Aug 27, 2018
Thank you!


14vl19

  • Sr. Member
  • ****
  • Posts: 310
Reply #3 on: Aug 27, 2018
Always glad to help...


« previous next »
 

Did you know?

Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

Did you know?

The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

Did you know?

Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

Did you know?

Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.

Did you know?

Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

Isotopes of Hydrogen Isotopes of Hydrogen
Stable isotopes of carbon Stable isotopes of carbon
Using radiogenic strontium isotopes in carbonate shells as a proxy for orogeny Using radiogenic strontium isotopes in carbonate shells as a proxy for orogeny
In 1994 a team of German physicists created an atom of Element 110. If the atom In 1994 a team of German physicists created an atom of Element 110. If the atom
What element(s) is/are being oxidized? What element(s) is/are being oxidized?
Immune-to-brain signaling occurs in response to infection, injury, and inflammation that occur in pe Immune-to-brain signaling occurs in response to infection, injury, and inflammation that occur in pe
Video: Introduction to Spirometry

For a complete list of videos, visit our video library